Pipe-stem.



M. KUL?.

PIPE STEM.

APPLIoATroN rxLBD APR. 3, 190sA Patented Mar. 15, 1910.

UNITED STATES PATENT OFFICE.

MAX KOLF, OF ST. LOUIS, MISSOURI, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, OF ONE-THIRD TO EUGENE MAENDLEN AND ONE-THIRD TO WILLIAM F. MEYER, BOTH OF ST. LOUIS, MISSOURI, AND ONE-THIRD T0 NATIONAL COB PIPE WORKS, OF UNION, MISSOURI, A CORPORATION OF MISSOURI.

PIPE-STEM.

To all whom 'it may concern.'

Be it known that I, MAX KOLF, a citizen of the United States, and resident of St. Louis, Missouri, have invented certain new and useful Improvements in Pipe-Stems, of which the following is a specification containing a full, clear, and exact description, reference being had to the accompanying drawings, forming a part hereof.

My invention relates to improvements in pipe stems, my object being to construct a pipe stem having that portion which goes into the pipe made of metal which will not become burned, and which also will not clog up.

To the above purposes, my invention consists in certain novel features of construction and arrangement of parts which will be hereinafter more fully set forth, pointed out in the claims, and illustrated in the accompanying drawings, in which:

Figure l is a perspective view of a pipe having my improved stein applied thereto; Fig. 2 is a section of the pipe and a portion of the stem; Fig. 3 is a perspective view of the metal cap or shell which is applied to the stem; Fig. 4 is a perspective view of a modified form of the cap: Fig. 5 is a section taken on the line 5-*5 of Fig. 4; and Fig. 6 is a perspective of still another modified form.

Referring by numerals to the accompanying drawings: l indicates the bowl of the pipe` which may be made of any material and of any form.

2 indicates the stem hole, which is formed in the usual manner in the bowl, being located, however, a short distance from the bottom of the bowl, as illustrated in Fig.

3 indicates one portion of my stem, which may be made of any suitable material, and applied to the front end of said portion 3 is a metal cap or shell el.. Said metal cap or shell is tapering, and is provided with a closed end 5 and an open end (3, in which the member 3 is inserted.

7 indicates a curved slit, which is formed in said metal cap or shell 4 intermediate of the closed end 5 and the open end 6. Said slit is of sufficient width to freely permit Specification of Letters I'atent.

Application led April 3, 1909.

Serial No. 487,744.

the smoke to pass into the interior of said shell, but restricted suiiiciently to prevent the passage into said shell of pieces of tobacco, or other foreign substances. It is preferable to so locate the cap or shell 4 in the pipe that said slit projects downwardly, so that the tamping of the tobacco in the pipe will not affect said slit.

In Fig. 4 I have shown radial slits formed in said cap or shell et, and in Fig. G I have shown aseries of perforations formed around the inner end of said shell.

By the use of a pipe stem of my improved construction, as heretofore stated, the inner end of the pipe stem is protected from burning and the closed end of the metal cap or shell placed on the stem provided with a hole for the passage of smoke, and being so restricted that it will not permit the ingress of tobacco or foreign substances into the stem, said stem atords quite a desideratum to smokers.

I claim:

l. The combination in a tobacco pipe with a bowl having a single stem opening and a stein, of a cap having a closed end and an open end, there being an opening intermediate the ends.

2. The combination in a tobacco pipe with. a bowl having a single stein opening and a stem, of a detachable cap arranged to einbrace the end of the stem.

The combination in a tobacco pipe with a bowl having a single stem openingI and a stein, of a detachable cap, closed at one end, and, having a slot adjacent its closed end, arranged to embrace the end of the stein.

4. The combination in a tobacco pipe with a bowl having a single stem opening and a stem, of a tapering detachable cap, closed at one end, and, having a slot adjacent its closed end, arranged to embrace the end of the stem.

In testimony whereof, I have signed my name to this speci lication, in presence of two subscribing witnesses.

MAX KOLF.

Titnesses H. G. FLETCHER, E. L. WfALL/xon.

Patented Mar. 15, 1910. 

